Other Parts Discussed in Thread: OPA593
I need to make a part of my design to be a HOWLAND PUMP for driving up to 100mA. Doing the simulations I could have maximum 60mA of load. I know that the MAx output current of this chip is 65mA. I tried to simulate what is mentiones in the document "Analysis of improved Howland current Pump" design Number 4. The simulation in Pspice is not working. I need to make sure of my circuit.
I appreciate any kind of help.
Resistance values are not calculated.
I tried to do the simulation in LTSpice as well.
with the values on this circuit if gives around 33mA.